Deep learning techniques for inverse problems in imaging
Recent work in machine learning shows that deep neural networks can be used to solve a
wide variety of inverse problems arising in computational imaging. We explore the central …
wide variety of inverse problems arising in computational imaging. We explore the central …
Deterministic equivalent and error universality of deep random features learning
This manuscript considers the problem of learning a random Gaussian network function
using a fully connected network with frozen intermediate layers and trainable readout layer …
using a fully connected network with frozen intermediate layers and trainable readout layer …
Online stochastic gradient descent on non-convex losses from high-dimensional inference
Stochastic gradient descent (SGD) is a popular algorithm for optimization problems arising
in high-dimensional inference tasks. Here one produces an estimator of an unknown …
in high-dimensional inference tasks. Here one produces an estimator of an unknown …
Instance-optimal compressed sensing via posterior sampling
We characterize the measurement complexity of compressed sensing of signals drawn from
a known prior distribution, even when the support of the prior is the entire space (rather than …
a known prior distribution, even when the support of the prior is the entire space (rather than …
A non-asymptotic framework for approximate message passing in spiked models
Approximate message passing (AMP) emerges as an effective iterative paradigm for solving
high-dimensional statistical problems. However, prior AMP theory--which focused mostly on …
high-dimensional statistical problems. However, prior AMP theory--which focused mostly on …
Phase retrieval in high dimensions: Statistical and computational phase transitions
We consider the phase retrieval problem of reconstructing a $ n $-dimensional real or
complex signal $\mathbf {X}^\star $ from $ m $(possibly noisy) observations $ Y_\mu=|\sum …
complex signal $\mathbf {X}^\star $ from $ m $(possibly noisy) observations $ Y_\mu=|\sum …
Robust compressed sensing using generative models
We consider estimating a high dimensional signal in $\R^ n $ using a sublinear number of
linear measurements. In analogy to classical compressed sensing, here we assume a …
linear measurements. In analogy to classical compressed sensing, here we assume a …
Towards sample-optimal compressive phase retrieval with sparse and generative priors
Compressive phase retrieval is a popular variant of the standard compressive sensing
problem in which the measurements only contain magnitude information. In this paper …
problem in which the measurements only contain magnitude information. In this paper …
Phase retrieval from incomplete data via weighted nuclear norm minimization
Recovering an unknown object from the magnitude of its Fourier transform is a phase
retrieval problem. Here, we consider a much difficult case, where those observed intensity …
retrieval problem. Here, we consider a much difficult case, where those observed intensity …
Generative principal component analysis
In this paper, we study the problem of principal component analysis with generative
modeling assumptions, adopting a general model for the observed matrix that encompasses …
modeling assumptions, adopting a general model for the observed matrix that encompasses …